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Cisco UCS-CPU-A7643 | EPYC 7643 48-core 2.3GHz, 256MB L3, SP3, 225W, DDR4-3200 8-ch, PCIe 4.0 (128 lanes)

SKU:UCS-CPU-A7643

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Description

Balanced core density and efficiency for virtualization, databases, and scale-out applications on Cisco UCS servers. The EPYC 7643 offers 48 cores with strong memory bandwidth and I/O for mixed enterprise workloads. Verify UCS model compatibility and BIOS levels before deployment.

Features

- 48-core density for consolidation and virtualization
- 256MB L3 cache for balanced performance across workloads
- PCIe 4.0 with up to 128 lanes for high-throughput adapters
- 8-channel DDR4-3200 ECC memory subsystem
- Optimized for Cisco UCS AMD EPYC servers (verify HCL)

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: What use cases does the 7643 target?
A: Virtualization clusters, databases, analytics, and scale-out workloads that benefit from high core counts and memory bandwidth.

Q: Do I need a firmware update to use this CPU?
A: Ensure the UCS server is on a firmware/BIOS level that supports EPYC 7003 CPUs as per Cisco’s HCL.

Q: Is mixing with other EPYC models supported in dual-socket?
A: No. Use identical CPU models/steppings across sockets.

Q: What memory does it support?
A: ECC DDR4 up to 3200 MT/s; achievable speed depends on DIMM population and server configuration.

Q: Is a heatsink included?
A: Heatsinks are server-specific; obtain the correct UCS heatsink/mounting kit if needed.

Technical Specifications

- CPU model: EPYC 7643 (Milan)
- Cores / Threads: 48 / 96
- Base frequency: 2.3 GHz
- L3 cache: 256 MB
- TDP: 225 W
- Socket: SP3 (LGA4094)
- Memory support: 8‑channel DDR4‑3200 ECC (capacity platform-dependent)
- PCIe: Gen 4.0, up to 128 lanes
- Process technology: 7 nm
- Platform: Cisco UCS AMD EPYC-based servers (check HCL/firmware)

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